Without the use of a car cell phone jammer

The broadband GSM jammer amplifies the whole GSM900 frequency spectrum and the other operator's signal is also amplified.
3G and HSDPA have a lot of challenges in the cities centres due to penetration. E.g. Accompany could have great 3G connectivity - then a bridge, a building or the Gautrain overhead rail is built across the up-town suburb between the BTS and your point of reception, and that is the end of the 3G signal. One only needs to move offices down the hall to lose a 3G signal and this is due to the penetration phenomena.
What should become clear is that it is no easy task giving coverage to every person in a diverse country such as South Africa. It is even more of a challenge to provide all the service available with cellphone technology coming up with new formats and medias such as "push technology" and video conferencing. It is not only about the phone but about the signal.One of the common problems with traveling or simply going from work to home, or vice versa, is the fact that you might not be in range of a cell tower for cell phone user. Without the use of a car cell phone jammer, your phone might "wander" forever trying to find a signal, and this is especially true if you travel through back-round or rural areas to get from point to point. Also known as a cell jammer, a car cellular phone jammer is a device that mounts to your car and typically attaches to your phone via an adapter of some sort.
When you've installed a car cell phone jammer, you're essentially installing a miniature cellular phone tower. Indeed, cell blocker and blocker basically work in the same way that your cellular phone provider's network towers function. The jammer communicates with nearby towers and identifies the best one for your phone.
The primary advantage of using a car cellular phone jammer in your automobile is that your cell phone enjoys an increased range. Depending on its make and particular functionality, a car cellular phone jammer can connect to a cell phone service provider's tower and extend its signal several hundred to several thousand square feet.
Because cell blocker can strengthen the signal between the cell phone tower and your mobile phone, you almost never have to worry about being without a signal.